These sit in different size classes, so this is not a straight ranking comparison. The JBL Partybox Stage 320 ranks #3 of 39 party speakers by sound quality at $499.95; the Sony ULT Tower 10 ranks #10 of 12 large party speakers by sound quality at $849.99.
Short answer: the JBL Partybox Stage 320 is the better-reviewed of the two, 4.6 against 3.9. Worth noting on the JBL Partybox Stage 320: Handle and wheels are convenient. The Sony ULT Tower 10’s case starts with louder than the Partybox Ultimate.
Where they differ on paper:
- Battery Life: 18 hours (Manufacturer specified) vs No Battery
- IP Rating: IPX4 vs None
- Drivers: 2x 6.5” woofers, 2x 25mm tweeters vs 7 drivers: 1x 12.6”x12.6” woofer, 2x 3.1” midrange, 2x 1.6” tweeter, 2x 1.6” rear tweeter
- Amplifier Power: 240W vs 139W
The case for the JBL Partybox Stage 320: Handle and wheels are convenient. Watch for: slightly sibilant in the treble at full blast. It undercuts the other on price as well, $499.95 versus $849.99.
Consider the Sony ULT Tower 10 for louder than the Partybox Ultimate: Watch for: not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers. It commands a premium as well, $849.99 against $499.95.
Buy the JBL Partybox Stage 320 at $499.95 if you want a party speaker. Buy the Sony ULT Tower 10 at $849.99 if you want a large party speaker instead.
Skip the Sony ULT Tower 10 if sound quality matters to you. It ranks near the bottom of the 12 large party speakers.
There is a real gap in water resistance: the JBL Partybox Stage 320 at IPX4 (splashing) against the Sony ULT Tower 10, which has no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Stage 320 | Sony ULT Tower 10 | |
|---|---|---|
| Price | $499.95 | $849.99 |
| Ranked | #3 of 39 in Party Size Portable Bluetooth Speakers | #10 of 12 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | No Battery |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.4 | 5.2 |
| Drivers | 2x 6.5" woofers, 2x 25mm tweeters | 7 drivers: 1x 12.6"x12.6" woofer, 2x 3.1" midrange, 2x 1.6" tweeter, 2x 1.6" rear tweeter |
| EQ | Yes (5 band) | Yes (7 band) |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | Yes (Auracast) | Yes (Auracast up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | Yes | No |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 36.4 lbs (16.5 kg) | 63.9 lbs (29 kg) |
| Amplifier Power | 240W | 139W |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | - |
| Wireless Microphones | - | Yes Included |
| Built-in Microphone | - | No |
| Wi-Fi | - | No |
| Dimensions | - | 16.5" x 43.5" x 16.9" (418 x 1106 x 428 mm) |
Related Speaker Comparisons
How JBL Partybox Stage 320 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- JBL Partybox 330 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox Stage 320
- JBL Partybox Club 120 vs JBL Partybox Stage 320
Prices on this page were last checked September 17, 2026 at 12:43 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
JBL Partybox Stage 320: $499.95 Amazon B&H Photo Video eBay
Pros: Handle and wheels are convenient. Customizable color lighting modes. Keeps more bass than the 310 at high volume. Removable battery.
Cons: Slightly sibilant in the treble at full blast. Very large.
Full JBL Partybox Stage 320 review and specifications →
| Amplifier Power | 240W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Drivers | 2x 6.5" woofers, 2x 25mm tweeters |
| EQ | Yes (5 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 36.4 lbs (16.5 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 320 vs 520 - indoor listening session More from Oluv’Sone →
- Oluv Patreon: JBL Partybox 320 vs 520 - outdoor test
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- GYMCADDY: JBL PartyBox Stage 320 Review - Big Upgrades Everywhere, Worth The Upgrade More from GYMCADDY →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- M1MTechChannel: soundcore Rave 3S mit 200W | LAUTER als die JBL Partybox 320 ?
- Head-to-Head Comparisons
- JBL Partybox Stage 320 vs JBL Partybox 330
- JBL Partybox Stage 320 vs JBL Partybox 310
- JBL Partybox Stage 320 vs Sony ULT Tower 5
- JBL Partybox Stage 320 vs Sony ULT Tower 7
- JBL Partybox Stage 320 vs JBL Partybox Club 120
- JBL Partybox Stage 320 vs JBL Partybox 130
- JBL Partybox Stage 320 vs JBL Partybox 100
- JBL Partybox Stage 320 vs JBL Partybox 110
- See all 66 comparisons
Sony ULT Tower 10: $849.99 Amazon eBay
Pros: Louder than the Partybox Ultimate. Includes a wireless microphone.
Cons: Not as deep of bass and loses more bass at high volume even compared to the lower end Partybox speakers. Bass drops off a lot at higher volumes.
Full Sony ULT Tower 10 review and specifications →
| Amplifier Power | 139W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.5" x 43.5" x 16.9" (418 x 1106 x 428 mm) |
| Drivers | 7 drivers: 1x 12.6"x12.6" woofer, 2x 3.1" midrange, 2x 1.6" tweeter, 2x 1.6" rear tweeter |
| EQ | Yes (7 band) |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 63.9 lbs (29 kg) |
| Wi-Fi | No |
| Wireless Microphones | Yes Included |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Tower 10 vs Sony ULT Tower 9
- Sony ULT Tower 10 vs Sony SRS-XV900
- Sony ULT Tower 10 vs Marshall Bromley 750
- Sony ULT Tower 10 vs Teufel Rockster
- Sony ULT Tower 10 vs JBL Partybox 520
- Sony ULT Tower 10 vs JBL Partybox 710
- Sony ULT Tower 10 vs JBL Partybox 720
- Sony ULT Tower 10 vs Teufel Rockster 2
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